I think the big thing on the ten virgins is all knew he was coming but only half were ready and could go when the shout came because only half had done what was required to be ready. The same is true in the rapture many know of the rapture and that it is coming but not all are doing what is commanded them, that is what is required of them, to go in the rapture. Also many feel that somehow salvation=rapture that if you are saved you will be raptured. Yes you must be saved to be rapture(unless under the age of accountability) but just because you are saved does not mean you will be raptured. The rapture is a reward like a crown base on you doing something to earn it and that something is told to you in Luke 21:36 and mentioned in many other verses.
 
  Luke 21:36   Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.
 Mar 13:35   Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning:
 Mat 24:42   Watch therefore: for ye know not what hour your Lord doth come.
 1Th 5:6   Therefore let us not sleep, as [do] others; but let us watch and be sober.
 1Pe 4:7   But the end of all things is at hand: be ye therefore sober, and watch unto prayer.
 Rev 3:3   Remember therefore how thou hast received and heard, and hold fast, and repent. If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.
 
  If you don't go it doesn't mean you aren't saved and won't go to heaven just that you didn't do what was necessary for that reward. Simply watching for the rapture and praying to be worthy to go in it makes you worthy. You must be saved of course unless under the age of accountability. Confession of sins is part and parcel of the faith if you don't do that you are christian. Confessions mainly are a issue of the heart.  You can say you are sorry but not really mean it. Only the Lord knows if you are sorry for you sins in your heart. But one must watch and pray to be worthy to go in the rapture for that is following his commandment in Luke 21:36 and thus make you worthy to go. And remember that salvation and rapture are not equal. You can be saved and not be raptured.
 
  Paul